A neighborhood represented by an apparent geocentric and flat-earth model of the Solar System is hidden in the subway of Madrid.

A masterpiece of Rationalist architecture in the center of Madrid with lizards on it.

A rare set of strings by famed instrument maker Antonio Stradivarius is on display in the Royal Palace.

Remains of the lost church hide beneath this Spanish Parliament building.

A unique exhibit lets blind people experience famous works of art and architecture with their hands.

An iconic and controversial ancient Iberian funerary urn with a hauntingly penetrating gaze.